104837561 has 2 divisors, whose sum is σ = 104837562. Its totient is φ = 104837560.

The previous prime is 104837489. The next prime is 104837591. The reversal of 104837561 is 165738401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104427961 + 409600 = 10219^2 + 640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104837561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (104837591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52418780 + 52418781.

It is an arithmetic number, because the mean of its divisors is an integer number (52418781).

Almost surely, 2^104837561 is an apocalyptic number.

It is an amenable number.

104837561 is a deficient number, since it is larger than the sum of its proper divisors (1).

104837561 is an equidigital number, since it uses as much as digits as its factorization.

104837561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 104837561 is about 10239.0214864507. The cubic root of 104837561 is about 471.5259907247.

The spelling of 104837561 in words is "one hundred four million, eight hundred thirty-seven thousand, five hundred sixty-one".